i resently bought the DIR-850L Router , to extent my network to the secont floor of my home,i plug my isp modem router to the 850L and a have internet access throug it but i can't access to the other devices that are connected to my isp modem router (2pc , 1lanprinter , 1lanharddisc)

What Hardware version is your router? Look at sticker under the router case.Hardware Version : A1Link>What Firmware version is currently loaded? Found on the routers web page under status.Firmware Version : 1.07What region are you located?I am in Grece

Internet Service Provider and Modem ConfigurationsWhat ISP Service do you have? Cable or DSL?My ISP is DSLWhat ISP Modem Mfr. and model # do you have?I have the Speedport W 724V Type Ci.

Can try this for the 850L:I think i can but my ISP router address is 192.168.1.1 and every time i change the address off the DIR-850L i couldn't even connet to the routers web page

Hello again , I have made the changes of the link , but when u change the IP to 192.168.1.50 , the router is turning on, the leds are green but i can't connect to the router with the new IP , what should I have to do ??

IF your connecting directly to the 850L you should be able to connect to the routers web page using the new IP address. Do you get Internet thru the 850L when in this mode?

Look at the main router DHCP IP table, check to see if you see the .1.50 address listed there or a different address...it maybe getting a different address...The .1.50 address is only accessible from the 850L side and should be accessible from the main host router side if it's on the same IP address sub net.

Can you ping the new IP address on the 850L while LAN wire connected to it? Disconnect the 850L from the main host router. Set a static IP address ON the PC for 192.168.1.49 and save settings. You should be able to ping the 1.50 address and connect to it's web page using the same address...

Still Nothing any time i try to change the DIR 850L address from 192.168.0.1 to 192.168.1.XX the router stops working i can't connet to it and its need hard reset ... so i stop trying because the hard reset button on the bottom is now broken so i dont take the risk